glade



(No Model.) 5 SheCts--S'heet 1.

C. GLADE.

CIRCULAR SAWINC MACHINE..

No. 3C5,512. PatntedJune 28%1887.

(No Model.) 5 Sheets-Sheet 2. C. GLADB.

CIRCULAR SAWNGMAGHINE.

lllllllll Jl'fll PatQnteQJuwne 2%8, 1887.

NA Pneus. mnu-ummm. wnmngxm u` f 5 Sheets-Sheet 3.

(No Model.)

@.GLADB.

CIRCULAR SAWING MACHINE.

Patented Jne 28, 1887.

(No Model.) 5 sheets-sheet 4. `C. GLADE. GIRGULAR SAWI-Ner MACHINE.

Inv e n flor Illvllll jp/t ofney (No Model.) sweets-sheet 5.

'0. GLADB.

CIRCULAR SAWING MACHINE. No. 365,512. Pateted June, 28, 1887..

Witnesses. Y v i Inventor,

Y l filtern/61g.

N. PETERS, huwlipgwphtf. Washington ILC.

' UNITED STATES PATENT OFFICE.

oLAus eLAnE, or DREYE, NEAR BREMEN, reussir., GERMANY.

CIRCULAR sAwlNe MACHINE.

SPECIFICATION forming part of Letters Patent No. 365,512, dated June 29,1887.

Application filed February 17, 1886. Serial No. 192,250. (No model.)Patented in Germany October 25, 1883, No. 27,439, July 1,

1884, N0. 29,817, and March 2Q, 1885, No. 32,725.

To all whom it may cocer:

Be it known that I, CLAUS GLADE, a subject of the King of Prussia,residing at Dreye,

near Bremen, have invented certain new'and i useful Improvements -inSawing-Machines,`

(for which Letters Patent have been granted in Germany under dates ofOctober 25, 1883, No. 27,439, July l, 1884, No. 29,817, and March 22,1885, No. 32,7255) and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which 1 it appertains to make and use thesame, refer- 1 ence being had to the accompanying drawings,

and to letters of reference marked thereon, which form a part of thisspecication.

This invention relates to that class of woodworking machines moreparticularly designed ,for cutting thin boards, such as are usuallyemployed in the manufacture of cigar and other like light boxes.

The invention has for its object certain improvements in theconstrnctionof the class of machines referred to; and it consists in theconstruction, arrangement, and cooperation of parts, substantially ashereinafter described, y

and as set forth in the claims.

Referring to the annexed drawings, in which like letters of referenceindicate like parts, Figure l is a side elevation, Fig. 2 a left endelevation, partly in section, and Fig. 3 a par.

frame, showing a portion of the means for adjusting the gage-plate g'.

In the above drawings, G indicates the main frame, provided withsuitable bearings for the arbor a of a circular saw, b, upon whicharborare mounted a fastfand a loose `belt-pulley, c and d, respectively, lasshown in Fig. 2. The

to'p or table-cof' the frame G is slotted or in-A has two lateralbrackets, f and y, one at each end thereof, to which is secured acheek-piece or rail, h, that is provided on its upper face with adovetailed groove, in which is fitted a correspondiugly-shaped railformed on the under side of a carriage, i, that has a traversing motionover the said rail h. rlhe traversing movement is imparted to thcarriage by means of a screw, k,that passes n centrally along the underside of said carriage and works in a nut, m2, formed on or secured tosaid under side of carriage i, as shown in dotted lines in Fig. 3. Thescrew la has its bearings in the opposite ends of the rail h, and isheld against longitudinal movement by a nut, mt, and a check-nut, m5, asshown in Fig. 3.

It is obvious that if the screw 7c is rotated in the proper directionthe carriage z' will be moved toward the saw b, and that if thisrotation of the screw is reversed the said carriage will be moved in areverse direction, or

vaway from the said saw.

- It is also obvious that if the carriage is moved at a proper speed tofeed the wood to the saw, and at a greater speed when said car' riagemoves away from said saw, a material saving in time is thereby effected.To this end I have devised means not only for imparting to the carriagea greater speed in a direction away from the saw than that toward thesaw,but also means whereby the reversal ofthe traversing motion iseffected automatically, as follows:

On the outer end of the screw 7a is mounted a fast pulley, C', and onopposite sides thereof a loose pulley, G and CX.

A shaft, S, carries two driving-pulleys, b

52, the latter pulley having a diameter twice as great as the diameterof the pulley b; and R and R are the two driving-belts, the former beltbeing a straight belt, while the belt R is a crossed belt.

The carriagez' receives its traversing motion to the saw through thepulley b and belt It, and from the saw through the pulley b2 and belt R,so that the motion of the carriage i in a direction away from the saw istwice as great as that toward said saw.

The belts R and R may be automatically shifted from either of the loosepulleys C or Cx onto the fast pulley C between them, to etiect thereversal of the traversing motion of the carriage by mechanism which maybe arranged and constructed in any suitable manner.

In Figs. l and 2 I have shown one convenient arrangement of suchmechanism,` which is constructed and arranged for operation as follows:

m is a slideebar having at opposite ends a bracket-bearing, 1n7 m8,respectively, through which the shifting bar or rod n passesloosely.

To the bar m are secured the beltshifting forks Z and m, and on said baris secured a pin, I?, Figs. 2 and S, that projects into avertical slot,zt, formed in a shifting-lever, e3, fulcrumed to the main frame, asshown in Fig. 1, by means of which lever the belts R and R may beshifted from the fast pulley C onto the loose pulleys C Cx, todisconnect the driving-screw k from the driving-shaft.

In the outer ends of the bracket bearings or arms m7 and ma are formedbearings in which are loosely mounted flan ged sleeves llIT and MS,respectively, so arranged that the flanges thereof will abut or bearagainst the inner face of the bracket-arms, as more plainly shown inFigs. 3 and S.

Through the sleeves lll7 and MYS passes a rod, a, that is secured tobracketarms a* and a5, rigidly connected with the beltshifting bar n,and on said rod between the tianges of the sleeves M7 M8 is mounted acoiled spring, q.

Near the opposite ends of the belt-shifting rod n, which slides insuitable bearings formed ou or secured to the main frame, are mountedlugs o and o', that lie in the path of an arm or lug, p, secured to thecarriage z', said lugs o and o being adjustable on the rod n, so as toprovide means for adjusting the amplitude of the traversing motion ofsaid carriage The operation of the belt-shifting devices may be brieflydescribed to be as follows: As the carriage 1I is about to reach thelimit of its traversing motion toward the left or in the drection of thesaw, the arm p will engage with the lug o, thereby drawing the rod n inthe same direction. During this motion of the rod n its arm a will comein contact with the end of sleeve M7, while the bracket-arm at will moveaway from the end of sleeve M8, Figs. 3 and S, the spring q beingcompressed between the tiangcs of the sleeves. The pressure of thespring exerted upon sleeve MS will move the latter, the slide-bar m, andthe belt-shifting forks l and m in the same direction, the belt R beingmoved from loose pulley CX onto fast pulley C', while belt R is movedfrom fast pul ley C onto the left-hand loose pulley C, this operationbeing reversed when the arm p engages the lug o on the ri Oht end ofcarriage Upon the carriage are arranged supports r for the block of woodto be cut. These supports are interchangeable to support blocks of woodof different sizes in such aposition that the cutting is always effectedat the highest possible point ofthe circular saw.

The supports or bearings for the block c are secured in position bymeans of bolts and nuts, which bolts pass through suitable slots in thecarriage t'.

The block c is secured to its supports by means of the followingdevices: At opposite ends of the table is secured a slotted standard, s,from the upper end of which projects an arm, S5, in which a shaft, a,has its bearings.

To the shaft a, near each end, is secured a lever or link, t, providedwith a screw-threaded piu or bolt,w",that passes through the verticalSlot of a support, w, that is provided with a screw-threaded pin orbolt, s, that projects into the vertical slot of the standard s, saidpinsw s4 being secured in position on the supports and standards bymeans of nuts,as more plainly shown in Fig. l0.

In the slotted supports w are formed bearings for a shaft, x, on whichare secured adjustably the blocking-dogs y, by means of which the blockof wood to be sawed is secured to the carriage i.

It will be observed that by means of the construction and arrangement ofthe devices above described the blocking devices may be adjustedvertically within the limit of the slots of the standards s and supportsw by loosening the nuts on the pins ws and raising or lowering thesupports w and shaft x on the standards s, and by means of thehand-lever t, secured to shaft a, the supports w and shaft may be tiltedby hand to disengage the dogs g/ from the block of wood, the shaft ahaving a fixed bearing in the arms S5 of standards s, and the pin s4serving as a fulcrum for the support w.

To save the labor of dsengaging the block of wood from the blocking-dogsy y by hand every time a board has been sawed off, I have devised meanswhereby this may be effected automatically.

At its left end the shaft .e carries a radial arm, c, to which issecured a screw-threaded pin, Z, that projects into a vertical slot of alink, w', to which it is pivotally connected by a nut or nuts. The lowerend of the link w is pivoted to a radial arm, a, secured to across-shaft, b, that has its bearings at the left end of the carriage Toa rock-lever, c', on the outer end of shaft b" is adjustably secured aweight, d, through which the shaft b is held in such a position that theblocking-dog y will be held in engagement with the block of wood e', aswill bc readily understood.

In the side of the rail or cheek-piece h of the frame is formed aslotted guideway, h2, in which is adjustably secured a slide that has aninclined projecting ledge,f, which lies in the path of the weight d. Asthe carriage moves toward the saw, away from the ledge IOO IIO

" justing-Screw, o2, and hand-wheel p thereon.

or projection f', the dogs y y remain in engagement with the block ofwood e andhold the same firmly on the carriage. When the traversing`motion of the latter is reversed, after a board has been sawed off, theweight d rides up the inclinef, thereby rocking the shaft b from left toright. This lilts the link w', and through the latter the shaft or isrocked to llift the dogs y y out of engagement with the block of woode'. As the weight d reaches the highest point of the incline thecarriage i has also reached the limit of its reverse traversing motion,when the block of wood may be adjusted relatively to the saw, ashereinafter described, to cut another board. A s the carriage t againmoves toward the saw, the weight d slides down the incline f', and before the block of wood comes in contact with the saw said block willagain be firmly held to the carriage by the blocking-dogs.

.Thelateral adj ustmentofthe block ofwoodz'. e., the adjustment of theblock of wood toward the saw-is effected by means .of a gageplate, g',and screw k', as follows:' The gageplate g is secured to a T-shapedfoot-piece or support, G3, that is pivoted at one end, as shown at c',to a carriage,i, that slides in a dovetailed guideway, h',l Fig. 2,formed in thc frame ot' the machine. The carriage has aninteriorly-screw-threaded lug, 1*, in which operates the adjusting-screw k', that carries a hand-wheel, Zsaid screw k being heldagainst endwise movement in said lug Z4, and a collar, D', hereinafterreferred to, which collar bears Von the outer face of the rheek-piece orrail It the plane of motion'of the saw. When, however, an undressedblock, orblock having an uneven surface, is to be operated on, it isnecessary to square it trst, and to effect this means should be providedto adjust or set theblock at any desired angle to the direction ofmotion of the saw. To this end I pivot the gage-plate g at oneiend tothecarriage, as described, and adj ust the same to position by means ofan ad- The screw oT works in a threaded bracket, a', formedon thefoot-piece G3 at the end opposite to the pivot v', said screw being heldagainst endwise motion by means of a nut and check-nut in suitablebearings formed in the frame of the machine, the gage-plate being guidedin this movement by the pin m', projecting through the slot M', formedin the support or foot-piece G3 of said gageplate, as above set forth.

It will be observed that by means of the described .devices the carriagei, the plate g', and its support G3 are adjustable together in onedirection, and the support G3 and its plate g are adjustableindependently of the carriage t" on the pivot v.

In addition to the arrangement for setting the gage-plate at an angle tothe direction of motion of the saw in dressing or squaring a block ofwood, I alsoprovide means whereby a block of wood having an unevensurface may`r be squared by first cutting oft'a slab therefrom. rIhis Iaccomplish by means of screws q q2, having a thread of great pitch, saidscrews `working in threaded bosses formed on the gage-plate g. One ofthese screws is connected by a radial arm, r', to a link, s', which linkis pivoted to a lever, R', mounted on the screw q2. The arrangement issuch that when the lever is moved in one direction the end of the screwswill project to a certain extent from the face-plate g', and when saidlever is rotated in a reverse direction the said end of vthe screws willbe withdrawn in the bosses. This arrangement is shown in Fig. 2 and indotted lines in Fig. 1. f.

In order to more securely hold the gageplate g inthe position to whichit has been adjusted, the screw lc' carries an adjustable collar, D',that bears on the outer face of the cheek-piece J1, and on said screw ismounteda spring, E, that bears upon the nut or lug on the carriage i',in which the screw operates, and on the inner face of the saidcheek-piece, thus holding the carriage fi more securely in the positionto which it has been adjusted, as shown in Fig. 11.

In the modified arrangement and construction of mechanism shown in Figs.4 and 6 the carriage t' is connected by means of a rod, Z2, to the endof a lever, g2, secured to a shaft, t2, to which is also secured atoothed sector, r2, that gears with a worm, s2, on ashaft, wi, supportedin brackets z' on theunder side of the cheekpiece or rail l1, and whichshaft carries the belt-pulleys C, C', and Cx.

'Ihe reversal ofthe traversing motion is effected by means of an anglearm, '1 2, secured to the carriage t' and projecting intov the path oftwo tappets, oZ o, secured to a slide-rod, n2,

said tappets being adjustable on the rod toA regulate the amplitudeofthe traversing motion of the carriage.

G2 is a lever pivoted at a3 to the rail h, and carrying at one end anadjustable weight, G. The. other end of the lever is slotted, as at y,and said slot engages one of a series of pins, n, on the rod a2 as soonas the arm y engages one of the tappets o2 o3. The rod n is carriedalong, thus moving the lever on its fulcrum, until the position thereofis reversed as the lever moves from a vertical to one or the 'other sideon its fulcrum. The rod n2 is carried along very rapidly under theimpulse of the weight G', thus shifting the belt-forks, which aresecured to rod n2 from one of the fast pulleys C or Cx to the loosepulley C', carrying the belts R and R along, and thus reversing themotion of the carriage i.

In the modifications shown in Figs. 5 and7 ICO the connecting-rod Zl is,as also shown in Fig. 4, pivoted at one end toa bracket, m, dependingfrom the under side of carriage z', and at the other end to a disk,p.The connection between the rod l and the disk is such that the amplitudeof the throw of said rod may be varied within certain limits, and tothis end the disk p has a radial slot, in which is fitted a block, g3,that is adjustable within said slot by means of a setscrew, a, and saidblock carries the wrist-pin, to which one end of rod Z is connected. Theshaft wi here also carries a worm, s, that meshes with a wheel, r, onthe shaft t2, on which is also secured the disk p.

The mechanism shown in Figs. l and 3, or that shown in Fig. 4, may herebe employed for reversing the traversing motion of the carriage '17.

Instead of connecting the rod Zl with the diskp3 it may be directlyconnected to an adj ustable wrist-pin on the toothed wheel meshing withthe worm s, or with one of a set of differential gearing, whereby a slowmotion in one direction and a more rapid lnotion in a reverse directionmaybe imparted to the carriage Having described my invention, what Iclaim is- I. In a woodworking machine, the combination, substantially asdescribed, with the traversing carriage 'i and two rock-shafts connectedto rock or oscillate together, one of said shafts carrying the dogs forsecuring the wood to be worked to the carriage, and the other shaft arock-lever, of a fixed stop in the path of the rock-lever to rock thesame when the carriage reaches a given pointin its traversing` movementin one direction and to rock the shafts and disengage the dogs from thewood on the carriage, for the purposes specified.

2. In a wood-working machine, the combination. substantially asdescribed, with the t-raversing` carriage i, two roclcshafts connectedto rock or oseillate together, dogs for securing the wood to beworked,mounted on one of said shafts, and a weighted rock-lever mounted ontheother shaft, of a stop adjustable in the path ofthe rock-lever forrocking the same when the carriage reaches a given point in itstraversing movelnent, for the purposes specified.

3. In a wood-working machine, the combination, substantially asdescribed, with the traversing carriage i, two superposed rockshaftsconnected to rock or oscillate together, one of said shafts beingadjustable toward and from the other, dogs for securing the wood to thecarriage, mounted on the upper shaft, and a rock-lever mounted on thelower shaft, of a fixed stop in the path of the rock-lever to rock thesame and the shafts when the carriage reaches a given point in itstraversing motion, substantially as and for the purposes specified.

4. In a wood-working machine, the combination, substantially asdescribed, with the traversing carriage i, two superposed rockshaftsconnected to rock or oscillate together,

` dogs for securing the wood to the carriage,

mounted on the upper shaft, and a rock-lever mounted on the lower shaft,of a fixed stop in the path of the traversing carriage to rock the leverwhen said carriage reaches a given point in its traversing motion, and agageplate ar ranged on one side of the carriage and adjustable in adirection at right angles to the traversing motion thereof, for thepurposes specified.

5. In a wood-working machine, the combination, substantially asdescribed, with the traversing carriage t', two superposed rockshaftsconnected to rock or oscillare together, dogs for securing the wood tothe carriage, mounted on the upper rock-shaft, and a rock lever mountedon the lower rock-shaft, of a fixed stop in the path of the rock-leverto rock the same and the shafts when the carriage reaches a given pointin its traversing motion, a gage-plate arranged on one side of thecarriage and adjustable in an arc of a circle on a fixed pivot, and anadjustingscrew for adjusting the gageplate in a direction at rightangles to the motion of said carriage, f'or the purpose specified.

6. The combination, with the carriage tand the verticallyslottedstandards s, the shaft u, mounted in said standards, and the radial armsor levers t on shaft u, said levers having pins wt, of thevertically-slotted supports in, provided with pins s, adjustable onstandards s by means of said pins s, projecting into the slots of thestandards, and the pins w on the radial arms or levers t, projectinginto the slots of the supports tu, and the shaft m, carrying dogsi/,mounted in supports w, said parts being constructed andoperatingsubstantiall y as and for the purpose specified.

7. The combination, with the carriage Iand the verticallyadjustablemechanism for seein'- ing the wood to said carriage, consisting of thestandards s, shaft a, mounted thereon, radial arms or levers i, thesupport w, and shaft mounted thereon and provided with a radial arm orlevens, ofthe vertically-slotted connect'- ing rod or link w', the shaftb, connected with the arm z through said slotted link w, and theweighted lever c' on shaft b, said parts being constructed and operatingsubstanti all y as and for the purposes specified.

S. The combination, with the traversing carriage t', of the adjustablecarriage i', arranged at right angles to carriage z', the gageplate g',its support G pivoted at one end to said carriage i', andthe ad jlisting-screws k 02, operating on carriage i and support G,substantially as deseribed,for the purposes specified.

9. In a wood-working machine, the combination,with the saw, the carriagez', having a projecting lug or arm, p, at 011e end, two superposedrock-shafts mounted on said carriage and connected to rock together,dogs on the upper shaft for securing the wood to the carriage, arock-lever on the lower shaft of the inclined planef,adjustablelengthwise of and ICO l'fO

operating on the rock-lever to rock the shafts when the carriage reachesa given point in its traversing motion, and a belt-shifter operated bythe carriage to reverse the traversing mo'- 5 tion thereof,substantially -as and for the purposes specified. w

10. ln a Wood-Working machine, the combi'- nation,vvith the revolvingsaw 'b and the traversingkcarriage z', provided with a lug or-arm,

ro p, at each end, of the belt-shifting devices, comprising the xed rodn, the shifter-bar m6, movable endwise thereon and having bracketarms m7ma, the sleeves M7 M, loosely mounted in said bracket arms, the rodnpassing loosely through said sleeves and connected rigidly with the rodn, and the spring q, mounted on said rod and bearing on the ends of thesleeves, said parts being constructed and operating substantially asdescribed, for the purpose specified.

In testimony whereof I aixmy signature.

in presence of two Witnesses.

` CLAUS GLADE. Witnesses:

J W. BEorrroLD, A. G. BoRoHERs.

